Answered

A circle had a circumference of 100 meter. Find its area.

Sagot :

[tex]C = 2 \pi r [/tex][tex]
100 = 2 \pi r [/tex]
[tex]r = \frac{100}{2 \pi } [/tex]
[tex] r= \frac{50}{ \pi y} [/tex]

[tex]A = \pi r^{2} [/tex]
[tex]A= \pi \frac{50}{ \pi }^2 [/tex]
[tex]A= \frac{10000}{ \pi } [/tex]